Ord for Id (#5176)

CHANGELOG.md

@@ -63,6 +63,11 @@ Bottom level categories:
 
 ## v0.19.2 (2024-02-29)
 
+### Added/New Features
+
+#### General
+- `wgpu::Id` now implements `PartialOrd`/`Ord` allowing it to be put in `BTreeMap`s. By @cwfitzgerald and @9291Sam in [#5176](https://github.com/gfx-rs/wgpu/pull/5176)
+
 ### Bug Fixes
 
 #### General

wgpu/src/lib.rs

@@ -74,6 +74,7 @@ mod macros;
 use std::{
     any::Any,
     borrow::Cow,
+    cmp::Ordering,
     error, fmt,
     future::Future,
     marker::PhantomData,
@@ -4948,6 +4949,18 @@ impl<T> PartialEq for Id<T> {
 
 impl<T> Eq for Id<T> {}
 
+impl<T> PartialOrd for Id<T> {
+    fn partial_cmp(&self, other: &Id<T>) -> Option<Ordering> {
+        self.0.partial_cmp(&other.0)
+    }
+}
+
+impl<T> Ord for Id<T> {
+    fn cmp(&self, other: &Id<T>) -> Ordering {
+        self.0.cmp(&other.0)
+    }
+}
+
 impl<T> std::hash::Hash for Id<T> {
     fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
         self.0.hash(state)